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首页> 外文期刊>BioMed research international >Zero Discharge Performance of an Industrial Pilot-Scale Plant Treating Palm Oil Mill Effluent
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Zero Discharge Performance of an Industrial Pilot-Scale Plant Treating Palm Oil Mill Effluent

机译：工业中试装置处理棕榈油厂废水的零排放性能

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Palm oil is one of the most important agroindustries in Malaysia. Huge quantities of palm oil mill effluent (POME) pose a great threat to aqueous environment due to its very high COD. To make full use of discharged wastes, the integrated “zero discharge” pilot-scale industrial plant comprising “pretreatment-anaerobic and aerobic process-membrane separation” was continuously operated for 1 year. After pretreatment in the oil separator tank, 55.6% of waste oil in raw POME could be recovered and sold and anaerobically digested through 2 AnaEG reactors followed by a dissolved air flotation (DAF); average COD reduced to about 3587 mg/L, and biogas production was 27.65 times POME injection which was used to generate electricity. The aerobic effluent was settled for 3 h or/and treated in MBR which could remove BOD3(30°C) to less than 20 mg/L as required by Department of Environment of Malaysia. After filtration by UF and RO membrane, all organic compounds and most of the salts were removed; RO permeate could be reused as the boiler feed water. RO concentrate combined with anaerobic surplus sludge could be used as biofertilizer.
机译：棕榈油是马来西亚最重要的农业产业之一。大量的棕榈油厂废水（POME）由于其COD很高而对水环境构成了巨大威胁。为了充分利用排放的废物，包括“预处理-厌氧和好氧工艺-膜分离”的综合“零排放”中试规模工厂连续运行了一年。在分油罐中进行预处理后，可以回收并出售原始POME中55.6％的废油，并通过2个AnaEG反应器进行厌氧消化，然后进行气浮（DAF）;平均COD降至约3587 mg / L，沼气产量是POME注入的27.65倍，用于发电。好氧废水沉降3 h或/并在MBR中处理，这可以按照马来西亚环境部的要求将BOD3（30°C）去除至低于20 mg / L。用UF和RO膜过滤后，除去所有有机化合物和大部分盐; RO渗透物可作为锅炉给水再利用。反渗透浓缩液和厌氧剩余污泥可以用作生物肥料。

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